Birkremite
(charnockite)紫苏花岗岩
🗣️ 情景例句
What I do with my money is none of your business.
我怎么花钱跟你无关。
Has your company done any research in this field?
请问贵公司对此范畴做了任何研究吗？
Have your mechanics finished yet?
你们的机械师修好了吗？